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bootstrap: translate Windows paths in a way that works for both Cygwin and MSYS2 #141556

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May 27, 2025
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bootstrap: translate Windows paths in a way that works for both Cygwin and MSYS2 #141556

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4 changes: 3 additions & 1 deletion src/bootstrap/src/core/build_steps/install.rs
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Original file line number Diff line number Diff line change
Expand Up @@ -38,7 +38,9 @@ fn sanitize_sh(path: &Path, is_cygwin: bool) -> String {
if ch.next() != Some('/') {
return None;
}
Some(format!("/{}/{}", drive, &s[drive.len_utf8() + 2..]))
// The prefix for Windows drives in Cygwin/MSYS2 is configurable, but
// /proc/cygdrive is available regardless of configuration since 1.7.33
Some(format!("/proc/cygdrive/{}/{}", drive, &s[drive.len_utf8() + 2..]))
}
}

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